CVE Catalog

CVE-2026-82457

HighCVSS 7.8
Published: Translated: NVD NIST

Summary

su-exec through version 0.3 fails to properly validate numeric user and group identifiers parsed with strtol before assigning to uid_t and gid_t, allowing truncation of out-of-range values to zero. Attackers can supply large numeric identifiers that truncate to root's identifier, causing su-exec to execute target programs with root privileges instead of intended unprivileged accounts.

Risk Assessment

The vulnerability allows privilege escalation to root, potentially leading to full system compromise by an attacker.

Recommendation

Update su-exec to a version that includes the fix for identifier validation, or apply a workaround by manually validating input data.

Related vulnerabilities

Original NVD description (English source)

su-exec through 0.3 fails to validate numeric user and group identifiers parsed with strtol before assigning to uid_t and gid_t, allowing truncation of out-of-range values to zero. Attackers can supply large numeric identifiers that truncate to root's identifier, causing su-exec to execute target programs with root privileges instead of intended unprivileged accounts.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS